I bought these minibikes earlier this year to rebuild. The one on the right is a Manco Thunderbird that had most of its parts, the one on the left is a Bird Terra Torque thats missing pretty much everything.
The original 3.5hp tecumseh motor wasnt running but still had compression. Missing the air cleaner and exhaust but thats ok, I was doing a harbor freight motor swap to a honda gx200 clone motor (6.5hp). Lots of chips and surface rust on the frame and hardware, tear in the seat.
I started taking apart the Manco to paint it but it ended up just being scattered on my garage floor for a few months. But this past week I finally got around to putting it back together. All I really did was just paint it and put the new motor on, and lube up all the moving parts.
Should be wrapping everything up on it this weekend, hopefully the centrifugal clutch from the old motor is still functional. Will do about 40-45 mph when its done, I have 2 friends with the same bikes and motor swap.
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no mods on my motor, it hasnt even been started yet.....but i do have a seized honda gx160 that came on the other bike.....i hear you can swap the head to the gx200/clones for a compression bump......
throttle issues all day then your pull start breaking means you get towed home.
